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| author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
|---|---|---|
| committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
| commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
| tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/openrisc/include/asm/bitops/__ffs.h | |
| parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
| parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/openrisc/include/asm/bitops/__ffs.h')
| -rw-r--r-- | arch/openrisc/include/asm/bitops/__ffs.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/bitops/__ffs.h b/arch/openrisc/include/asm/bitops/__ffs.h new file mode 100644 index 00000000..6c8368a3 --- /dev/null +++ b/arch/openrisc/include/asm/bitops/__ffs.h @@ -0,0 +1,33 @@ +/* + * OpenRISC Linux + * + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __ASM_OPENRISC___FFS_H +#define __ASM_OPENRISC___FFS_H + + +#ifdef CONFIG_OPENRISC_HAVE_INST_FF1 + +static inline unsigned long __ffs(unsigned long x) +{ + int ret; + + __asm__ ("l.ff1 %0,%1" + : "=r" (ret) + : "r" (x)); + + return ret-1; +} + +#else +#include <asm-generic/bitops/__ffs.h> +#endif + +#endif /* __ASM_OPENRISC___FFS_H */ |